An Internal Retainer Ring, also known as a snap ring, is a type of fastener used to secure the sun gear of the planetary in the final drive. It is a circular ring with a small gap that allows it to be snapped into place, creating a secure hold on the sun gear assembly. It is made of durable material to withstand the loads and stresses that are generated during operation.Attributes:• Withstands high rotational speeds and loads without slipping • Provides a high degree of precision and accuracy in retaining the sun gearApplications:An Internal Retainer Ring is used to maintain the positioning and alignment of the sun gear in the planetary gear of the final drive and retain the gear in place, preventing axial movement of the gear.